Okay well I guess there's no swaying your opinion on the matter, but I still say that at the very least they run a small test program with an updated combat system with a handful of gamers or something and take a poll whether they prefer it or not. It wouldn't cost that much if they use the graphics engine from the previous games and a small map area.
Yesterday is history. Tomorrow, a mystery. Today is a gift...that is why it is called the present.